Multi-pipe quantitative medium filling system of supercritical fluid dyeing machine
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Solution Overview
Problem
Current supercritical fluid waterless dyeing machines face challenges in accurately controlling the amount of dyeing medium, leading to unreliable pressure adjustments, fluctuations in dyeing conditions, and increased dyelot chromatism, which complicates operations and reduces reproducibility and efficiency.
Innovation Solution
A multi-pipe quantitative medium filling system with a supercritical fluid medium reservoir, stop valve, medium filter, booster pump, high-pressure mass flowmeter, and ball valve, allowing for simultaneous and accurate filling of multiple dyeing units with independent filling branches, enabling precise control of medium flow and temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure adjustment is performed multiple times to control medium amount, then medium filling accuracy can be improved, but system operation complexity increases and dyeing process stability deteriorates
Solution Approach 1:
The patent replaces the traditional mechanical pressure adjustment system with a mass flowmeter-based quantitative control system. The mass flowmeter directly measures and controls the mass of CO2 medium entering the dyeing vessel, eliminating the need for repeated pressure adjustments. This substitution of control methodology achieves accurate medium filling without increasing operational complexity or compromising process stability.
Solution Approach 2:
The patent implements a feedback control mechanism where the mass flowmeter continuously monitors the mass of CO2 medium entering the system and provides real-time data to the control unit. The control unit compares the actual mass with the target mass and adjusts the filling process accordingly, ensuring accurate medium filling in a single operation without requiring multiple pressure adjustments.
2Quantity of substance
If pressure is continuously adjusted to meet target pressure, then medium amount control can be improved, but dyeing process conditions stability deteriorates
Solution Approach 1:
The patent replaces the pressure-based control system with a mass-based control system using a mass flowmeter. By directly measuring and controlling the mass of CO2 medium entering the dyeing vessel, the system achieves accurate medium amount control without the need for continuous pressure adjustments that destabilize the dyeing process conditions.
Solution Approach 2:
The patent performs preliminary quantitative measurement and control of the CO2 medium mass before it enters the dyeing vessel. The mass flowmeter measures the mass in advance during the filling process, allowing the system to achieve the target medium amount in a single operation without subsequent pressure adjustments that would compromise process stability.
3Measurement precision
If multiple pressure adjustments are performed, then medium filling accuracy can be improved, but production efficiency deteriorates
Solution Approach 1:
The patent replaces the traditional multi-step pressure adjustment system with a single-step mass-based control system using a mass flowmeter. This substitution enables accurate medium filling to be achieved in one operation, eliminating the time-consuming repeated pressure adjustments and significantly improving production efficiency.
Solution Approach 2:
The patent implements continuous mass measurement and control during the medium filling process through the mass flowmeter. This continuous monitoring and control enables the system to achieve accurate medium filling in a single continuous operation without interruptions for repeated pressure adjustments, thereby maintaining continuous productive action and improving overall production efficiency.
4Device complexity
If pressure adjustment is used to control medium amount, then system simplicity can be maintained, but measurement precision of medium amount deteriorates
Solution Approach 1:
The patent introduces a mass flowmeter-based measurement and control system that directly measures the mass of CO2 medium entering the dyeing vessel. This substitution of pressure-based indirect control with mass-based direct measurement significantly improves medium amount measurement precision while maintaining relative system simplicity through straightforward integration of the mass flowmeter and control unit.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system ensures accurate and reliable filling of supercritical fluid, stabilizes dyeing conditions, reduces dyelot chromatism, and enhances reproducibility and efficiency, making it suitable for industrialized production and high-efficiency commercial dyeing processes.
Implementation Method 1
supercritical CO2 fluid is an environmental-friendly and safe fluid medium... supercritical fluid waterless dyeing machine
Implementation Method 2
booster pump... high-pressure main pipe... high-pressure branch pipe
Implementation Method 3
supercritical fluid high-pressure mass flowmeter... precise control of medium flow
Implementation Method 4
medium filter... sequentially connected by a high-pressure main pipe
Implementation Method 5
high-pressure ball valve... sequentially connected along a medium forward direction
Data Source
AI summary
The invention relates to a multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine. The system comprises a supercritical fluid medium reservoir, a stop valve, and a medium filter sequentially connected by a high-pressure main pipe, and at least two filling branches independent of each other and connected to the medium filter. Each filling branch includes a booster pump, a supercritical fluid high-pressure mass flowmeter, a ball valve, and a dyeing unit sequentially connected along a medium forward direction by a high-pressure branch pipe. By using a mass-measurement filling system having multiple branches independent of each other, the invention can effectively realize simultaneous and accurate quantitative medium filling for separate dyeing units and differentiated filling for dyeing units with different medium masses, thus overcoming disadvantages such as unreliability, inaccuracy and low use efficiency of a conventional method, and also making a dyeing operation simple and scientifically feasible.